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Types of Ocean Plants

Coral and Algae
Coral and Algae

Coral, a sessile animal, relies on its relationship with plant--like algae to build the largest structures of biological origin on Earth

image: alamy.com
Coralline Algae
Coralline Algae

Coralline algae take two different forms. Articulated species grow upright and have "branches" with flexible, uncalcified joints that withstand strong water motion. Crustose species encrust mostly on rocks, although they may also grow on plants or animals.

Giant Kelp
Giant Kelp

Like plants, however, the giant kelp harvests the sun’s energy through photosynthesis and does not feed on other organisms. This species is one of the fastest growing species in the world, and under perfect conditions, it has been known to grow up to two feet (60 cm) in a single day.

source: oceana.org
Killer Algae
Killer Algae

At Smithsonian Ocean, we have lesson plans, activities, and resources to help you engage your students in the wonders of our oceans. ... Plants & Algae Articles.

source: ocean.si.edu
Phytoplankton
Phytoplankton

Phytoplankton, also known as microalgae, are similar to terrestrial plants in that they contain chlorophyll and require sunlight in order to live and grow. Most phytoplankton are buoyant and float in the upper part of the ocean, where sunlight penetrates the water.

image: flickr.com
Red Algae
Red Algae

A red tide is one type of harmful algal bloom. Blooms occur when colonies of algae--simple ocean plants that live in the sea--grow out of control while producing toxic or harmful effects on people, fish, shellfish, marine mammals and birds.

Sargassum Seaweed
Sargassum Seaweed

Sargassum is a genus of large brown seaweed (a type of algae) that floats in island-like masses. Pelagic brown algae in the genus Sargassum. The berry-like structures are gas-filled bladders known as pneumatocysts, which provide buoyancy to the plant.

image: ocean.si.edu
Sea Grapes
Sea Grapes

A tropical tree found in the tropics, sea grape plant (Coccoloba uvifera) is often used in ocean-side landscaping. Growing sea grapes can be found in sandy soil right on the beach and it produces clusters of fruit that resemble grapes.

Seagrass
Seagrass

Seagrass meadows account for more than 10% of the ocean’s total carbon storage. Per hectare, it holds twice as much carbon dioxide as rain forests. Yearly, seagrasses sequester about 27.4 million tons of CO 2 [citation needed].

Seaweed
Seaweed

"Seaweed" is the common name for countless species of marine plants and algae that grow in the ocean as well as in rivers, lakes, and other water bodies. Kelp forest in the Channel Islands National Marine Sanctuary and National Park.